Orascom has been prequalified to bid for the construction of an independent sewage treatment plant in Saudi Arabia, TradeArabia reports. The plant, close to Taif in Mecca, will boast a total treatment capacity of up to 270,000 cbm per day once completed, officials from Saudi Arabia’s Water & Electricity Company (WEC) have said. Nine other global industry heavyweights, including France's Suez and Korea's Samsung Engineering, have also been prequalified for the project.